Steam-superheater arrangement in plants provided with steam-accumulators.



c. 1. RUTHS. STEAM SUPERHEATER ARRANGEMENT IN PLANTS PROVIDED WITH STEAM ACCUMULATORS. APPLICATIUN FILED IAN- l, 1 91 7.

1,294,271. Patented 'Feb. 18,1919.

CARL JOHANNES RUTHS, 0F DJUBSHOLM, SWEDEN.

STEAM-SUPEBHEATER ARRANGEMENT IN PLANTS PROVIDED WITH STEAM- AccmuULA'rons.

T 0 all 'whomiit may concern:

Be it known that I, CARL JOHANNES RUTHS, subject of the King of Sweden, residing at Djursholm. in the Kingdom of Sweden, have invented certain new and useful Improvements in Steam-Superheater Arrangements in Plants Provided with Steam- Acciimulators, of which the following is a specification.

In steam acciunulators containing water the steam supplied from the accumulator 1s more or less wet. In many cases this is aconsiderable disadvantage, and it is therefore often desirable to more or less superheat the steam. The present invention relates to an arrangement to that efi'ect and consists in providing the steam accumulator with a special superheater, or a special su-.

perheating device.

The superheater of the steam accumulator may. of course, be constructed as an ordlnar superheater. It is, however, preferably so designed. asto store in the accumulator part. of the heat contained in the live steam. The superheater then imparts this heat to the steam delivered from the accumulator.

The above mentioned apparatus preferahlv consists of a receptacle filled with solid material. as iron langrage or stones. The superheated charging steam flowing into the accumulator will heatt-he said material to a relativelv high temperature. When the accumulatrir is discharged the steam flows from the. a'cciunula tor through the said heat storing device, whereby the steam is superheated or dried. Even in case the steam accumulator does not contain water, but is constructed for instance as a gasholder, the storing of heat in a receptacle filled with a heatstoring material may be advantageous. The steam supplied to the accumulator may be assumed to be delivered either from a steam boiler, or from a steam engine after having done its Work therein. The steam obtained from the accumulator may be used for many different purposes.

In the. drawings which show my steam superheater arrangement diagrammatically. Figure 1 illustrates one embodiment there- 01 Fig. 2 shows a modification: Fig. 3 illustrates another embodiment of my invention and Fig. 4 another modification. Like parts are designated by the same reference characters in all the figures of the drawing.

In Fig. 1 the superheated steam is sup- Specification of Letters Patent.

. condensed.

plied from a steam boiler (not shown).

Patented Feb. 18. 19119..

Application filed January 11, 1917. Serial No. 141,766.

S consisting of iron langrage, stones or the like. In passing through a, the superheated steamyields part. of its heat of superheat and incertain cases, 2'. e. when the accumulator is cold as when steam is first introduced even part of its latent heat. After having thus yielded heat, the steam escapes through the automatic. stop valve 9 and the pipe Z to the steam accumulator b which is filled for the greater part with hot water '2). The steam flows into this water through a large numher of holes min the pipe Z and is condensed. During the discharging period. the steam flows from the accumulator I) through the pipe Z and the automatic stop valve 7- atthe end of said pipe into the receptacle a, and in passing through the heat storing material S, itreceives part of the heat stored therein. The steam finally passes in a superheated or dried condition through the pipe Z to the place of consumption.

In Fig. 2, the heat storing device is in.- closed in the steam accumulator b, the heat storing material S being carried on a grating g, or the like. The steam, entering through the pipe 1 passes through S and is condensed by coming into contact -With water jets from the holes 722 in a pipe Z As shown, the circulation is'efi'ected by arentrifugal pump p which draws the .water from the lower part of the accumulator I) through the pipe Z and presses it back through the said pipe Z the water being discharged therefrom through the said holes 1m for condensing the steam. During the discharging period, the steam leaves the accumulator I) through the heat storing device S, and it is thereby dried or superheated before it passes out through I to the place of consumption. This arrangement offers a minimum of resistance to the charging steam.

In Fig. 3 the steam enters the receptacle (1 through the valve Q2 and the pipes Z and Z passes through the heat storing device S delivering heat thereto. and then flows through the pipes Z and Z to the upper accumulator '7) entering into the water of the same through the holes 122 in the pipe I and being The steam accumulator consists of two parts. viz. the upper accumulator 7) and the lower accumulator c. The latter is completely filled with hot water whereas Z) is only partly filled the upper portion forming a steam chamber. The water level depends on the extent of the charging or discharging. The circulation is such that water contained in the accumulator Z) flows into 0 through the pipe Z and is pumped back into I) by the centrifugal pump p through the pipe Z During the discharging period, the steam in leaving the accumulator I) through the pipe Z, the valve 41 the water separator 03 and the pipe Z passes through the receptacle a, wherein the steam is superheated by the heat storing material S before it flows farther on through the valve 12 and the pipe Z to the place of consumption.

In Fig. 4 the superheated steam flows through the pipe Z into the receptacle (1, passes through the heat storing material S and enters by the pipe Z into the upper accumulator b. On coming into contact with the water jets from the holes m, the steam During the discharging period, the steam esstorage device both on its way to and fromthe said accumulator.

2. An arrangement as specified in claim 1, in which the heat storage device comprises a recepetacle containing heat storing ma terial, refer-ably in a solid state.

3. T 1e method of utilizing the heat of the superheat of superheated steam which consists in passing the superheated steam through a device adapted to absorb and store part of the heat of the superheat, then passing the steam on to a steam accumulator and afterward passing the steam from the said accumulator back through the said device.

In testimony whereof I afiix my signature in presence of two witnesses.

CARL J OHANN ES vRUTH S.

Witnesses:

GUs'rAF JoNNAs, GRrrA PRIM. 

